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Andreas Zehnsdorf @ 50: A tribute

Edited by: Ms. Dagmar Fiedler, Dr Lucie Moeller
Dear Professor Zehnsdorf,

This special issue is dedicated to you on the occasion of your 50th birthday.

This collection of articles is a personal gift from some of your present and former colleagues and project partners who work in the field of bioenergy and sustainability, in honor of your special birthday.

May not only you but also all readers enjoy this special edition!

Kindly accept our warm congratulations on your birthday and our sincere best wishes for health and happiness in the coming years. We wish you for the future not only many smart ideas and good solutions but also sustained success in your teaching and research. At this point, we would like to thank you for all your support and cooperation as well as the unusual way of doing science, which is in fact unique.

Happy Birthday!

Lucie Moeller and Dagmar Fiedler
on behalf of the publisher and all the contributing authors

  1. Original article

    Digestion of bio-waste - GHG emissions and mitigation potential

    For a precise description of the emission situation of the anaerobic digestion (AD) of the separately collected organic fraction of household waste (bio-waste), only a few data are available. The paper present...

    Jaqueline Daniel-Gromke, Jan Liebetrau, Velina Denysenko and Christian Krebs

    Energy, Sustainability and Society 2015 5:3

    Published on: 17 January 2015

  2. Original article

    Foam formation in full-scale biogas plants processing biogenic waste

    The proportion of biogas in the mix of renewable energies is still remarkably high. The process of anaerobic digestion (AD) provides the basis of biogas production but often leads to excessive foaming. Identif...

    Lucie Moeller and Kati Görsch

    Energy, Sustainability and Society 2015 5:1

    Published on: 17 January 2015